I had a brief chat with Rasmus Lerdorf who is speaking later. I asked him about Zend, which presents itself as the PHP company (that is actually the slogan on its web site). Is it really? Lerdorf says Zend has no special status. While acknowledging its contribution, he says there are 1300 PHP committers, and only 6 work for Zend. He emphasizes that PHP is a community project and that decisions are made by consensus, influenced by who is actually willing to write the code, not by Zend or any company.
They also spoke a bit about the PHP Development Tools for the Eclipse IDE and where the strong marketing push is in the PHP community.